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of the die geometry and extrusion speed on the cold extrusion of aluminum and lead alloys. The optimum die profile in cold-rod extrusion of aluminum with work-hardening was obtained by NOORANI et al..., four different die geometries including straight tapered and cosine transition profile and each of them having round and clover inlet geometries were chosen. In the experimental study, commercially......
Research of Tribological Behaviors of a New Aluminum Bronze WANG Zhi-ping1,XU Jian-lin1,CHEN Chao2 (1.State Key Lab of Gansu New Non-ferrous Metal Materials, Lanzhou University of Science... strength and wear resistant aluminum bronze, with its friction coefficient and wear-rate lower than those of ZQAl9-4 and ZQAl10-4-4 alloys in terms of Chinese national standard.The results showed......
. Numerical simulation of push-bending process of aluminum section profile[J]. Advanced Materials Research, 2010, 97/101: 90-95. [4] YANG H, LI H, ZHANG Z Y, ZHANG M, LIU J, LI G J. Advances and trends... of aluminum alloy micro-multiport profile[J]. Journal of Plasticity Engineering, 2017, 24(5): 1-6, 31. [19] ZHANG J, XIAO X B, WANG R Q, JIN X S. Vibro-acoustic characteristics measurement and equivalent......
Determination of wax pattern die profile for investment casting of turbine blades DONG Yi-wei, BU Kun, DOU Yang-qing, ZHANG Ding-hua Key Laboratory of Contemporary Design and Integrated... tolerances, an efficient numerical method, displacement iterative compensation method,g axis of the puch based on finite element methodology (FEM) was presented for the wax pattern die profile design......
Environmental availability and profile characteristics of arsenic, cadmium, lead and zinc in metal-contaminated vegetable soils SONG Jie(宋 杰), GUO Zhao-hui(郭朝晖), XIAO Xi...; Abstract: Environmental availability and profile characteristics of arsenic (As), cadmium (Cd), lead (Pb) and zinc (Zn) were studied in contaminated vegetable soils from the Pb/Zn......
J. Cent. South Univ. Technol. (2010) 17: 688-696 DOI: 10.1007/s11771-010-0541-1 Effects of process parameters and die geometry on longitudinal welds quality in aluminum porthole die extrusion...; Abstract: By using the rigid-visco-plasticity finite element method, the welding process of aluminum porthole die extrusion to form a tube......
special-shaped radiator aluminum profile LUO Song1, 2, LIN Gao-yong1, ZENG Ju-hua1, SUN Li-ping1, ZOU Yan-ming1, ZHOU Yu-xiong1 (1. School of Materials Science and Engineering, Central South.... Key words: 6061 radiator aluminum profile; hard phases; surface quality 铝型材以良好的导热性能和成形性能成为制造散热器的重要材料[1].作为散热器型材,为了实现散热器热传导能力的最大化,不仅要选用具有较高传热系数的材料,还要保证热源与散热器底座的紧密结合,因此,对型材的表面质量有较高的要求[2].但是,铝型材在生产过程中特......
; 文章编号:1672-7207(2008)04-0748-07 Numerical simulation of extrusion process of X5214 aluminum alloy profile LIN Gao-yong, ZHOU Jia, ZHENG Xiao-yan, FENG Di... aluminum profile X5214 with extrusion ratio of 98.28 was simulated in the new simulation system on the platform of MSC. SuperForge successfully. The uniformity of the velocity in z direction......
Effects of laser phase transformation hardening parameters on heat input and hardened-bead profile quality of unalloyed titanium D. S. BADKAR1, K. S. PANDEY1, G. BUVANASHEKARAN2 1... geometry (i.e. hardened bead width (HBW), hardened depth (HD) and angle of entry of hardened bead profile with the surface (AEHB)) were investigated using response surface methodology (RSM......
Accuracy profile理论在高效液相色谱法测定纺织品中3种有机溶剂残留中的应用保琦蓓1,2,傅科杰1,3,钱丹1,任清庆11. 宁波出入境检验检疫局纺织品检测中心2. 宁波检验检疫科学技术研究院3. 浙江理工大学材料与纺织学院摘 要:样品经超纯水机械振荡萃取,提取液在Spursil C18色谱柱上分离,以甲醇-水-乙腈(25+70+5)混合液为流动相进行洗脱,检测波长为200nm.N,N-二甲基甲酰胺,N,N-二甲基乙酰胺和N-甲基吡咯烷酮的质量浓度在0.510 mg·L-1内与峰面积呈线性关系,检出限(3S/N)为1.12.8mg·kg-1,测定下限(10S/N)为3.79.3mg·kg-1.采用Accuracy profile理论验证方法的准确性,并评估了测定的不确定度,说明方法可满足3......
